US20180126399A1 - Pump type dispenser - Google Patents
Pump type dispenser Download PDFInfo
- Publication number
- US20180126399A1 US20180126399A1 US15/576,630 US201615576630A US2018126399A1 US 20180126399 A1 US20180126399 A1 US 20180126399A1 US 201615576630 A US201615576630 A US 201615576630A US 2018126399 A1 US2018126399 A1 US 2018126399A1
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- United States
- Prior art keywords
- passage
- pump
- vertical
- type dispenser
- pump type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0089—Dispensing tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1001—Piston pumps
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- B05B11/3001—
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- B05B11/3047—
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/14—Pumps characterised by muscle-power operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0037—Containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/0005—Components or details
- B05B11/0037—Containers
- B05B11/0039—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means
- B05B11/0044—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means
- B05B11/00442—Containers associated with means for compensating the pressure difference between the ambient pressure and the pressure inside the container, e.g. pressure relief means compensating underpressure by ingress of atmospheric air into the container, i.e. with venting means the means being actuated by the difference between the atmospheric pressure and the pressure inside the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1042—Components or details
- B05B11/1043—Sealing or attachment arrangements between pump and container
- B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
- B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
- B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
- B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
- B05B11/1087—Combination of liquid and air pumps
Definitions
- the present invention relates to a pump type dispenser which dispenses a content liquid with which a container is filled toward the outside, and particularly relates to a pump type dispenser including a dispensing member capable of dispensing a content liquid in a predetermined form.
- a pump type dispenser including a dispensing member capable of dispensing a content liquid in a predetermined form.
- a pump type dispenser held by a mouth portion of the container is frequently used.
- the pump is driven by repeatedly pushing down a nozzle head which then be restored to dispense the content liquid.
- a pump type dispenser although it is common to directly dispense a content liquid from an opening at a distal end of the nozzle head, there are pump type dispensers in which a dispensing member (mouthpiece) is attached to the opening at the distal end of the nozzle head to dispense the content liquid in a predetermined form (for example, dispensing the content liquid divided into a plurality of portions, dispensing the content liquid from a longer distance than usual, or the like) (see Patent Document 1, for example).
- a pump type dispenser it is necessary for a pump type dispenser to have a function of holding a dispensing member and preventing it from being separated so that the dispensing member is not accidentally detached from a nozzle head.
- a protruding portion is provided on an outer peripheral surface of a dispensing member, a recessed portion is provided inside a passage of a nozzle head, and the protruding portion is fitted into the recessed portion so that the dispensing member is held and prevented from being separated by the nozzle head.
- the recessed portion provided in the passage of the nozzle head is undercut. Therefore, it is necessary to consider releasability when molding the nozzle head.
- the present invention has been made to solve the above problems, and it is an object of the present invention to provide a pump type dispenser capable of holding a dispensing member and preventing it from being separated without using a recessed portion provided in a conventional nozzle head.
- a first aspect of the present invention is a pump type dispenser which includes a pump held by a mouth portion of a container and configured to suction and pressure-feed a content liquid in the container, and a nozzle head having an internal passage through which the pressure-fed content liquid passes and driving the pump by being repeatedly pushed down and restored.
- the internal passage includes a vertical passage communicating with the pump and a lateral passage connected to the vertical passage and that opens toward the outside, and includes a protrusion protruding toward an inner side in a joining portion between the vertical passage and the lateral passage, a dispensing member extending from the opening of the internal passage toward the joining portion and configured to dispense the content liquid introduced from an inlet on the joining portion side from an outlet on the opening side is disposed in the lateral passage, and the dispensing member includes a recessed portion which engages with the protrusion to prevent separation from the lateral passage.
- the dispensing member is made of a resin having flexibility and is bent with respect to an initial state after molding when disposed in the lateral passage.
- the vertical passage includes a vertical rib protruding toward an inner side and extending along the vertical passage, and the dispensing member includes a notch portion which engages with the vertical rib.
- a foam member which foams the content liquid is provided on a downstream side of the pump and the vertical rib comes into contact with an upper end of the foam member.
- a protrusion is provided in a joining portion between a vertical passage and a lateral passage in a nozzle head, and a dispensing member disposed in the lateral passage extends from an opening of the nozzle head toward the joining portion and includes a recessed portion which engages with the protrusion.
- the protrusion engages with the recessed portion so that the dispensing member can be held and prevented from being separated.
- a mold portion for forming the vertical passage and a mold portion for forming the lateral passage abut against each other in the joining portion between the vertical passage and the lateral passage.
- the protrusion can be provided on the abutment surface, the protrusion does not become undercut when the nozzle head is released from the mold portion and thus good mold releasability can be obtained.
- the dispensing member is made of a resin having flexibility and is bent (that is, in a bent state) with respect to an initial state after molding when disposed in the lateral passage.
- the dispensing member is disposed in the lateral passage in a state in which it receives an urging force from the lateral passage. That is, even when a force is generated in a direction that causes the dispensing member to be separated from the nozzle head, since a resistance force is generated between the dispensing member and the lateral passage, it is possible to more reliably prevent the dispensing member from being separated and the engagement between the protruding portion and the recessed portion can be reliably maintained.
- the vertical passage includes a vertical rib protruding toward an inner side and extending along the vertical passage and the dispensing member includes a notch portion which engages with the vertical rib.
- a foam member is provided on a downstream side of the pump.
- the vertical rib is in contact with an upper end of the foam member.
- the vertical rib it is possible for the vertical rib to have a function of preventing the foam member from being separated (a function of positioning).
- FIG. 1 is a cross-sectional view showing one embodiment of a pump type dispenser according to the present invention.
- FIG. 2 is a plan view of the pump type dispenser shown in FIG. 1 and is a front view of a dispensing head constituting a dispensing member.
- FIG. 3A shows a plan view, a cross-sectional view, a front view, and a rear view showing an initial state of an insertion member constituting the dispensing member.
- FIG. 3B is a cross-sectional view showing a state in which the insertion member is bent when disposed in a lateral passage.
- FIG. 4 is a partially enlarged cross-sectional view of a portion X in FIG. 1
- (b) of FIG. 4 is a cross-sectional view taken along line Y-Y shown in (a) of FIG. 4 .
- FIG. 5 is a partially enlarged cross-sectional view for describing a formation position of a protrusion formed in a joining portion.
- upper refers to a side on which a nozzle head is positioned with respect to a base cap to be described below
- lower refers to a side opposite thereto
- front refers to a side on which an opening of the nozzle head is positioned with respect to a central axis of the nozzle head
- rear refers to the opposite side.
- reference sign 1 shows a base cap mounted on a mouth portion of a container (not shown).
- the base cap 1 includes a cylindrical circumferential wall 1 a which surrounds the mouth portion of the container, a donut-shaped top surface wall 1 b which extends toward a radial inner side from an upper end of the circumferential wall 1 a , and a cylindrical wall 1 c which stands up from an inner circumferential edge of the top surface wall 1 b .
- a female screw portion 1 d which engages with a male screw portion provided at the mouth portion of the container is provided.
- other conventionally known engaging member such as undercut may be used.
- reference sign 2 shows a pump suspended and held by the mouth portion of the container by the base cap 1 and configured to pump up a content liquid with which the container is filled.
- the pump 2 includes a cylinder 3 , a content liquid piston 4 , a poppet 5 , a stem 6 , a spring 7 , a ball valve 8 , an air piston 9 , and a check valve 10 .
- the cylinder 3 includes a small-diameter cylindrical body 3 a and a large-diameter cylindrical body 3 b which are arranged in series.
- the content liquid piston 4 , the poppet 5 , the stem 6 , the spring 7 , the ball valve 8 , the air piston 9 , and the check valve 10 are incorporated in the cylinder 3 .
- the pump 2 suctions, pressurizes, and pressure-feeds the content liquid and air individually when the stem 6 is pushed down and restored.
- Reference sign 11 shows a foam member in which the content liquid and air pressure-fed from the pump 2 join to foam the content liquid.
- the foam member 11 of the present embodiment is provided at an upper portion of the stem 6 .
- the foam member 11 is constituted by a mesh ring 12 in which a mesh is attached to one end portion of a ring-shaped main body portion and a jet ring 13 which holds the mesh ring 12 (holds two mesh rings 12 in the present embodiment).
- Reference sign 14 shows a nozzle head.
- the nozzle head 14 includes an inner cylinder 14 a surrounding the foam member 11 and connecting it to the stem 6 , a top wall 14 b serving as a pressing portion for pushing down the nozzle head when the stem 6 connected to the inner cylinder 14 a is pushed down, and a nozzle 14 c connected to the top wall 14 b and extending in a lateral direction.
- an internal passage T including a vertical passage T 1 formed inside the inner cylinder 14 a and a lateral passage T 2 formed inside the nozzle 14 c are provided.
- one end of the lateral passage T 2 is connected to the vertical passage T 1 and the other end thereof opens toward the outside.
- a vertical rib 14 d extending along the vertical passage T 1 is provided.
- the vertical rib 14 d is in contact with an upper end of the jet ring 13 to cover a portion of the mesh ring 12 and prevents the mesh ring 12 and the jet ring 13 from being separated.
- a protrusion 14 e protruding from the top wall 14 b toward the inside (the internal passage T) is provided in a joining portion T 3 in which the vertical passage T 1 and lateral passage T 2 are connected.
- the protrusion 14 e of the present embodiment is formed on an abutment surface between a mold portion M 1 for forming the vertical passage T 1 and a mold portion M 2 for forming the lateral passage T 2 at the time of molding the nozzle head 14 .
- an upper end portion of a rear end of the mold portion M 2 is inclined (curved in the present embodiment)
- a space is formed between an upper end surface of an abutment surface of the mold portion M 1 and an upper end surface of an abutment surface of the mold portion M 2 when the mold portion M 1 and the mold portion M 2 abut against each other.
- the protrusion 14 e is formed due to the space generated at the time of molding the nozzle head 14 .
- the nozzle head 14 includes an outer cylinder 14 f which surrounds the inner cylinder 14 a . Further, an annular member 15 attached to a lower end of the outer cylinder 14 f to reduce a gap with the cylindrical wall 1 c of the base cap 1 is provided in the present embodiment.
- a dispensing member 16 is disposed in the lateral passage T 2 .
- the dispensing member 16 of the present embodiment includes an insertion member 17 which extends from an opening of the nozzle 14 c toward the joining portion T 3 and a dispensing head 18 attached to a front of the insertion member 17 .
- the insertion member 17 includes a rectangular base portion 17 a , an annular wall 17 b extending obliquely upward from a rear end of the base portion 17 a and having a rectangular shape smaller than the base portion 17 a , and a tubular wall 17 c extending in the same direction as an extension direction of the annular wall 17 b from a rear end of the annular wall 17 b and having a U-shaped cross section with its lower side open.
- a protruding portion 17 d which protrudes toward an outer side is provided on an outer peripheral surface of the base portion 17 a
- a groove-shaped recessed portion 17 e is provided on an upper surface of a rear end side of the tubular wall 17 c .
- the recessed portion 17 e may be a through hole penetrating the tubular wall 17 c .
- a notch portion 17 f is provided in a center portion of a rear end of the tubular wall 17 c .
- FIG. 3A shows the insertion member 17 in an initial state after molding.
- the insertion member 17 is made of a resin having flexibility and is bent downward as shown by a solid line in FIG. 3B when disposed in the lateral passage T 2 as compared with an initial state shown by a virtual line in FIG. 3B .
- the dispensing head 18 includes a rectangular outer wall 18 a surrounding the base portion 17 a of the insertion member 17 , a top wall 18 b provided at a front end of the outer wall 18 a , and a cylindrical dispensing tube 18 c extending toward a front side from the top wall 18 b (in the present embodiment, three dispensing tubes 18 c in total are arranged in a line).
- a claw portion 18 d engaging with the protruding portion 17 d is provided on an inner peripheral surface of the outer wall 18 a.
- the dispensing member 16 including the insertion member 17 and the dispensing head 18 as described above is disposed in the lateral passage T 2 , the recessed portion 17 e engages with the protrusion 14 e as shown in (a) of FIG. 4 . Therefore, the dispensing member 16 is held and prevented from being separated from the nozzle head 14 .
- the insertion member 17 is in the bent state (bent state) as compared with the initial state. Therefore, a portion of the insertion member 17 comes into contact with the nozzle head 14 while pressing against the nozzle head 14 due to a restoring force that restores the initial state from the bent state.
- the tubular wall 17 c since the tubular wall 17 c has a U-shaped cross section (since there are walls not only on the top portion but also on both sides), an elastic force of the tubular wall 17 c becomes stronger than when there is no wall on either side portion. Thereby, the insertion member 17 can be brought into contact with the nozzle head 14 while pressing against the nozzle head 14 with even greater restoring force. Therefore, even when a force is generated in a direction that causes the insertion member 17 to be separated from the nozzle head 14 , since a resistance force is generated between the nozzle head 14 and the insertion member 17 , it is possible to more reliably prevent the insertion member 17 from being separated.
- the restoring force that restores the initial state from the bent state of the insertion member 17 acts in an upward direction, the engagement of the recessed portion 17 e with respect to the protrusion 14 e is made even stronger and more reliable and it is possible to more reliably prevent the insertion member 17 from being separated.
- the annular wall 17 b of the insertion member 17 is in close contact with an inner surface of the nozzle 14 c (a surface forming the lateral passage T 2 ). Therefore, the content liquid does not leak out from a region in which the annular wall 17 b of the insertion member 17 and the inner surface of the nozzle 14 c are in contact with each other.
- the foam member is provided for the pump type dispenser, but the foam member may not be provided and the content liquid may be directly dispensed.
- the number, arrangement, hole diameter, or the like of the dispensing tube provided in the dispensing head may be appropriately changed in accordance with a desired dispensing mode of the content liquid.
- the pump is not limited to the pump of the aspect described above, and conventionally known pumps of other aspects may be used.
- a dispensing member can be held and prevented from being separated. Further, it is possible to obtain good mold releasability when forming a nozzle head.
Abstract
Description
- The present invention relates to a pump type dispenser which dispenses a content liquid with which a container is filled toward the outside, and particularly relates to a pump type dispenser including a dispensing member capable of dispensing a content liquid in a predetermined form. Priority is claimed on Japanese Patent Application No. 2015-109501, filed May 29, 2015, the content of which is incorporated herein by reference.
- In containers filled with content liquids such as shampoos, body soaps, hand soaps, or facial cleansers, a pump type dispenser held by a mouth portion of the container is frequently used. In such a pump type dispenser, the pump is driven by repeatedly pushing down a nozzle head which then be restored to dispense the content liquid.
- In such a pump type dispenser, although it is common to directly dispense a content liquid from an opening at a distal end of the nozzle head, there are pump type dispensers in which a dispensing member (mouthpiece) is attached to the opening at the distal end of the nozzle head to dispense the content liquid in a predetermined form (for example, dispensing the content liquid divided into a plurality of portions, dispensing the content liquid from a longer distance than usual, or the like) (see Patent Document 1, for example).
- Japanese Patent Publication No. 3609486
- However, in such a pump type dispenser, it is necessary for a pump type dispenser to have a function of holding a dispensing member and preventing it from being separated so that the dispensing member is not accidentally detached from a nozzle head. In a pump type dispenser disclosed in Patent Document 1, a protruding portion is provided on an outer peripheral surface of a dispensing member, a recessed portion is provided inside a passage of a nozzle head, and the protruding portion is fitted into the recessed portion so that the dispensing member is held and prevented from being separated by the nozzle head.
- That is, the recessed portion provided in the passage of the nozzle head is undercut. Therefore, it is necessary to consider releasability when molding the nozzle head.
- The present invention has been made to solve the above problems, and it is an object of the present invention to provide a pump type dispenser capable of holding a dispensing member and preventing it from being separated without using a recessed portion provided in a conventional nozzle head.
- A first aspect of the present invention is a pump type dispenser which includes a pump held by a mouth portion of a container and configured to suction and pressure-feed a content liquid in the container, and a nozzle head having an internal passage through which the pressure-fed content liquid passes and driving the pump by being repeatedly pushed down and restored. In the present pump type dispenser, the internal passage includes a vertical passage communicating with the pump and a lateral passage connected to the vertical passage and that opens toward the outside, and includes a protrusion protruding toward an inner side in a joining portion between the vertical passage and the lateral passage, a dispensing member extending from the opening of the internal passage toward the joining portion and configured to dispense the content liquid introduced from an inlet on the joining portion side from an outlet on the opening side is disposed in the lateral passage, and the dispensing member includes a recessed portion which engages with the protrusion to prevent separation from the lateral passage.
- In a second aspect of the present invention, in the pump type dispenser of the first aspect, the dispensing member is made of a resin having flexibility and is bent with respect to an initial state after molding when disposed in the lateral passage.
- In a third aspect of the present invention, in the pump type dispenser of the first aspect or second aspect, the vertical passage includes a vertical rib protruding toward an inner side and extending along the vertical passage, and the dispensing member includes a notch portion which engages with the vertical rib.
- In a fourth aspect of the present invention, in the pump type dispenser of the third aspect, a foam member which foams the content liquid is provided on a downstream side of the pump and the vertical rib comes into contact with an upper end of the foam member.
- According to a pump type dispenser of the present invention, a protrusion is provided in a joining portion between a vertical passage and a lateral passage in a nozzle head, and a dispensing member disposed in the lateral passage extends from an opening of the nozzle head toward the joining portion and includes a recessed portion which engages with the protrusion. Thereby, the protrusion (protruding portion) engages with the recessed portion so that the dispensing member can be held and prevented from being separated. In addition, when forming the nozzle head, a mold portion for forming the vertical passage and a mold portion for forming the lateral passage abut against each other in the joining portion between the vertical passage and the lateral passage. However, since the protrusion can be provided on the abutment surface, the protrusion does not become undercut when the nozzle head is released from the mold portion and thus good mold releasability can be obtained.
- In addition, according to the pump type dispenser of the present invention, the dispensing member is made of a resin having flexibility and is bent (that is, in a bent state) with respect to an initial state after molding when disposed in the lateral passage. Thereby, the dispensing member is disposed in the lateral passage in a state in which it receives an urging force from the lateral passage. That is, even when a force is generated in a direction that causes the dispensing member to be separated from the nozzle head, since a resistance force is generated between the dispensing member and the lateral passage, it is possible to more reliably prevent the dispensing member from being separated and the engagement between the protruding portion and the recessed portion can be reliably maintained.
- In addition, according to the pump type dispenser of the present invention, the vertical passage includes a vertical rib protruding toward an inner side and extending along the vertical passage and the dispensing member includes a notch portion which engages with the vertical rib. Thereby, it is possible to prevent the dispensing member from deviating in a direction crossing the vertical rib with respect to the nozzle head.
- In addition, according to the pump type dispenser of the present invention, a foam member is provided on a downstream side of the pump. Thereby, since the content liquid can be foamed, it is easy to maintain a form of the content liquid dispensed from the dispensing member. Also, the vertical rib is in contact with an upper end of the foam member. Thereby, it is possible for the vertical rib to have a function of preventing the foam member from being separated (a function of positioning).
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FIG. 1 is a cross-sectional view showing one embodiment of a pump type dispenser according to the present invention. -
FIG. 2 is a plan view of the pump type dispenser shown inFIG. 1 and is a front view of a dispensing head constituting a dispensing member. -
FIG. 3A shows a plan view, a cross-sectional view, a front view, and a rear view showing an initial state of an insertion member constituting the dispensing member. -
FIG. 3B is a cross-sectional view showing a state in which the insertion member is bent when disposed in a lateral passage. - (a) of
FIG. 4 is a partially enlarged cross-sectional view of a portion X inFIG. 1 , and (b) ofFIG. 4 is a cross-sectional view taken along line Y-Y shown in (a) ofFIG. 4 . -
FIG. 5 is a partially enlarged cross-sectional view for describing a formation position of a protrusion formed in a joining portion. - Hereinafter, one embodiment of a pump type dispenser according to the present invention will be described in detail with reference to the drawings. In the specification, claims, and abstract of the present application, “upper” refers to a side on which a nozzle head is positioned with respect to a base cap to be described below, and “lower” refers to a side opposite thereto. In addition, “front” refers to a side on which an opening of the nozzle head is positioned with respect to a central axis of the nozzle head, and “rear” refers to the opposite side.
- In
FIG. 1 , reference sign 1 shows a base cap mounted on a mouth portion of a container (not shown). The base cap 1 includes a cylindricalcircumferential wall 1 a which surrounds the mouth portion of the container, a donut-shapedtop surface wall 1 b which extends toward a radial inner side from an upper end of thecircumferential wall 1 a, and a cylindrical wall 1 c which stands up from an inner circumferential edge of thetop surface wall 1 b. Also, on an inner circumferential surface of thecircumferential wall 1 a, afemale screw portion 1 d which engages with a male screw portion provided at the mouth portion of the container is provided. In order to hold the base cap 1 in the container, other conventionally known engaging member such as undercut may be used. - In
FIG. 1 ,reference sign 2 shows a pump suspended and held by the mouth portion of the container by the base cap 1 and configured to pump up a content liquid with which the container is filled. Thepump 2 includes acylinder 3, a content liquid piston 4, a poppet 5, astem 6, aspring 7, aball valve 8, anair piston 9, and acheck valve 10. Thecylinder 3 includes a small-diametercylindrical body 3 a and a large-diametercylindrical body 3 b which are arranged in series. The content liquid piston 4, the poppet 5, thestem 6, thespring 7, theball valve 8, theair piston 9, and thecheck valve 10 are incorporated in thecylinder 3. Thepump 2 suctions, pressurizes, and pressure-feeds the content liquid and air individually when thestem 6 is pushed down and restored. -
Reference sign 11 shows a foam member in which the content liquid and air pressure-fed from thepump 2 join to foam the content liquid. Thefoam member 11 of the present embodiment is provided at an upper portion of thestem 6. Thefoam member 11 is constituted by amesh ring 12 in which a mesh is attached to one end portion of a ring-shaped main body portion and ajet ring 13 which holds the mesh ring 12 (holds twomesh rings 12 in the present embodiment). -
Reference sign 14 shows a nozzle head. Thenozzle head 14 includes aninner cylinder 14 a surrounding thefoam member 11 and connecting it to thestem 6, atop wall 14 b serving as a pressing portion for pushing down the nozzle head when thestem 6 connected to theinner cylinder 14 a is pushed down, and anozzle 14 c connected to thetop wall 14 b and extending in a lateral direction. Also, inside thenozzle head 14, an internal passage T including a vertical passage T1 formed inside theinner cylinder 14 a and a lateral passage T2 formed inside thenozzle 14 c are provided. In addition, one end of the lateral passage T2 is connected to the vertical passage T1 and the other end thereof opens toward the outside. In addition, in the rear of an inner surface of theinner cylinder 14 a, avertical rib 14 d extending along the vertical passage T1 is provided. Thevertical rib 14 d is in contact with an upper end of thejet ring 13 to cover a portion of themesh ring 12 and prevents themesh ring 12 and thejet ring 13 from being separated. - As shown in
FIGS. 4 and 5 , aprotrusion 14 e protruding from thetop wall 14 b toward the inside (the internal passage T) is provided in a joining portion T3 in which the vertical passage T1 and lateral passage T2 are connected. As shown inFIG. 5 , theprotrusion 14 e of the present embodiment is formed on an abutment surface between a mold portion M1 for forming the vertical passage T1 and a mold portion M2 for forming the lateral passage T2 at the time of molding thenozzle head 14. Specifically, since an upper end portion of a rear end of the mold portion M2 is inclined (curved in the present embodiment), a space is formed between an upper end surface of an abutment surface of the mold portion M1 and an upper end surface of an abutment surface of the mold portion M2 when the mold portion M1 and the mold portion M2 abut against each other. Theprotrusion 14 e is formed due to the space generated at the time of molding thenozzle head 14. That is, since this space is merely surrounded by the upper end surface of the abutment surface of the mold portion M1 and the upper end surface of the abutment surface of the mold portion M2, theprotrusion 14 e after molding is not an obstacle when removing thenozzle head 14 after the molding from the mold portion M1 and the mold portion M2. Thus, since theprotrusion 14 e does not become undercut, good mold releasability can be obtained. - Also, as shown in
FIG. 1 , thenozzle head 14 includes anouter cylinder 14 f which surrounds theinner cylinder 14 a. Further, anannular member 15 attached to a lower end of theouter cylinder 14 f to reduce a gap with the cylindrical wall 1 c of the base cap 1 is provided in the present embodiment. - A dispensing
member 16 is disposed in the lateral passage T2. The dispensingmember 16 of the present embodiment includes aninsertion member 17 which extends from an opening of thenozzle 14 c toward the joining portion T3 and a dispensinghead 18 attached to a front of theinsertion member 17. - As shown in
FIG. 3A , theinsertion member 17 includes arectangular base portion 17 a, anannular wall 17 b extending obliquely upward from a rear end of thebase portion 17 a and having a rectangular shape smaller than thebase portion 17 a, and atubular wall 17 c extending in the same direction as an extension direction of theannular wall 17 b from a rear end of theannular wall 17 b and having a U-shaped cross section with its lower side open. In addition, a protrudingportion 17 d which protrudes toward an outer side is provided on an outer peripheral surface of thebase portion 17 a, and a groove-shaped recessedportion 17 e is provided on an upper surface of a rear end side of thetubular wall 17 c. In addition, the recessedportion 17 e may be a through hole penetrating thetubular wall 17 c. Further, anotch portion 17 f is provided in a center portion of a rear end of thetubular wall 17 c.FIG. 3A shows theinsertion member 17 in an initial state after molding. - The
insertion member 17 is made of a resin having flexibility and is bent downward as shown by a solid line inFIG. 3B when disposed in the lateral passage T2 as compared with an initial state shown by a virtual line inFIG. 3B . - As shown in
FIGS. 1 and 2 , the dispensinghead 18 includes a rectangularouter wall 18 a surrounding thebase portion 17 a of theinsertion member 17, atop wall 18 b provided at a front end of theouter wall 18 a, and acylindrical dispensing tube 18 c extending toward a front side from thetop wall 18 b (in the present embodiment, three dispensingtubes 18 c in total are arranged in a line). In addition, aclaw portion 18 d engaging with the protrudingportion 17 d is provided on an inner peripheral surface of theouter wall 18 a. - When the dispensing
member 16 including theinsertion member 17 and the dispensinghead 18 as described above is disposed in the lateral passage T2, the recessedportion 17 e engages with theprotrusion 14 e as shown in (a) ofFIG. 4 . Therefore, the dispensingmember 16 is held and prevented from being separated from thenozzle head 14. At this time, theinsertion member 17 is in the bent state (bent state) as compared with the initial state. Therefore, a portion of theinsertion member 17 comes into contact with thenozzle head 14 while pressing against thenozzle head 14 due to a restoring force that restores the initial state from the bent state. In the present embodiment, since thetubular wall 17 c has a U-shaped cross section (since there are walls not only on the top portion but also on both sides), an elastic force of thetubular wall 17 c becomes stronger than when there is no wall on either side portion. Thereby, theinsertion member 17 can be brought into contact with thenozzle head 14 while pressing against thenozzle head 14 with even greater restoring force. Therefore, even when a force is generated in a direction that causes theinsertion member 17 to be separated from thenozzle head 14, since a resistance force is generated between thenozzle head 14 and theinsertion member 17, it is possible to more reliably prevent theinsertion member 17 from being separated. In addition, since the restoring force that restores the initial state from the bent state of theinsertion member 17 acts in an upward direction, the engagement of the recessedportion 17 e with respect to theprotrusion 14 e is made even stronger and more reliable and it is possible to more reliably prevent theinsertion member 17 from being separated. Theannular wall 17 b of theinsertion member 17 is in close contact with an inner surface of thenozzle 14 c (a surface forming the lateral passage T2). Therefore, the content liquid does not leak out from a region in which theannular wall 17 b of theinsertion member 17 and the inner surface of thenozzle 14 c are in contact with each other. - Although the preferred embodiments of the present invention have been described with reference to the drawings, the present invention is not limited to the above-described embodiments. The shapes and combinations of the constituent members or the like shown in the above-described embodiments are merely examples, and various modifications can be made based on design requirements or the like without departing from the scope of the present invention.
- For example, in the above embodiment, the foam member is provided for the pump type dispenser, but the foam member may not be provided and the content liquid may be directly dispensed. Also, the number, arrangement, hole diameter, or the like of the dispensing tube provided in the dispensing head may be appropriately changed in accordance with a desired dispensing mode of the content liquid. In addition, the pump is not limited to the pump of the aspect described above, and conventionally known pumps of other aspects may be used.
- According to the pump type dispenser of the present invention, a dispensing member can be held and prevented from being separated. Further, it is possible to obtain good mold releasability when forming a nozzle head.
-
-
- 1 Base cap
- 1 a Circumferential wall
- 1 b Top surface wall
- 1 c Cylindrical wall
- 1 d Female screw portion
- 2 Pump
- 3 Cylinder
- 3 a Small-diameter cylindrical body
- 3 b Large-diameter cylindrical body
- 4 Content liquid piston
- 5 Poppet
- 6 Stem
- 7 Spring
- 8 Ball valve
- 9 Air piston
- 10 Check valve
- 11 Foam member
- 12 Mesh ring
- 13 Jet ring
- 14 Nozzle head
- 14 a Inner cylinder
- 14 b Top wall
- 14 c Nozzle
- 14 d Vertical rib
- 14 e Protrusion
- 14 f Outer cylinder
- 15 Annular member
- 16 Dispensing member
- 17 Insertion member
- 17 a Base portion
- 17 b Annular wall
- 17 c Tubular wall
- 17 d Protruding portion
- 17 e Recessed portion
- 17 f Notch portion
- 18 Dispensing head
- 18 a Outer wall
- 18 b Top wall
- 18 c Dispensing tube
- 18 d Claw portion
- M1 Mold portion for forming vertical passage
- M2 Mold portion for forming lateral passage
- T Internal passage
- T1 Vertical passage
- T2 Lateral passage
- T3 Joining portion
Claims (6)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-109501 | 2015-05-29 | ||
JP2015109501A JP6556498B2 (en) | 2015-05-29 | 2015-05-29 | Pump type dispenser |
PCT/JP2016/065092 WO2016194665A1 (en) | 2015-05-29 | 2016-05-20 | Pump type dispenser |
Publications (2)
Publication Number | Publication Date |
---|---|
US20180126399A1 true US20180126399A1 (en) | 2018-05-10 |
US10376909B2 US10376909B2 (en) | 2019-08-13 |
Family
ID=57441625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/576,630 Active US10376909B2 (en) | 2015-05-29 | 2016-05-20 | Pump type dispenser |
Country Status (5)
Country | Link |
---|---|
US (1) | US10376909B2 (en) |
EP (1) | EP3305681B1 (en) |
JP (1) | JP6556498B2 (en) |
CN (1) | CN107614389B (en) |
WO (1) | WO2016194665A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112173409A (en) * | 2020-08-26 | 2021-01-05 | 宁波圣捷喷雾泵有限公司 | Foam pump |
US20230149964A1 (en) * | 2021-11-17 | 2023-05-18 | Gojo Industries, Inc. | Single use table top sanitizer dispensers and self-detaching dip tubes for same |
Citations (10)
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US5443569A (en) * | 1993-03-05 | 1995-08-22 | Daiwa Can Company | Foam dispensing pump container |
US20050006411A1 (en) * | 2001-11-30 | 2005-01-13 | Katsuhito Kuwahara | Pump push-down head |
US7735692B2 (en) * | 2006-10-10 | 2010-06-15 | Meadwestvaco Calmar, Inc. | Rotating dispenser head with locking and venting closure connector for an air foaming pump dispenser |
US20100264169A1 (en) * | 2007-12-13 | 2010-10-21 | Colgate-Palmolive Company | Fragrance dispensing pump head |
US20110284587A1 (en) * | 2009-12-18 | 2011-11-24 | Sebastian Karol Galazka | Personal Care Composition Foaming Product |
US20110297700A1 (en) * | 2009-03-02 | 2011-12-08 | Evans Santagiuliana | Unit for dispensing fluids or mixtures and relevant dispensing device |
US8079497B2 (en) * | 2005-04-20 | 2011-12-20 | Meadwestvaco Calmar Netherlands B.V. | Dispenser with improved supply-closing means |
US20130200098A1 (en) * | 2010-10-26 | 2013-08-08 | Reckitt Benckiser Llc | Foaming Liquid Dispenser |
US8616414B2 (en) * | 2009-02-09 | 2013-12-31 | Gojo Industries, Inc. | Bellows foam dispenser |
US20140008394A1 (en) * | 2012-07-03 | 2014-01-09 | Paulus Antonius Augustinus Höfte | Foam Generating Dispenser |
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JP3609486B2 (en) | 1995-03-29 | 2005-01-12 | 株式会社吉野工業所 | Foam ejection container |
JP2574625Y2 (en) * | 1992-03-27 | 1998-06-18 | 株式会社吉野工業所 | Press-down head with nozzle for vertical pump |
JP3916936B2 (en) * | 2001-02-28 | 2007-05-23 | 株式会社吉野工業所 | Pump pressing head |
JP5246573B2 (en) * | 2008-11-17 | 2013-07-24 | 株式会社三谷バルブ | Shut-off mechanism, pump-type product with shut-off mechanism and aerosol-type product with shut-off mechanism |
JP5108745B2 (en) * | 2008-12-25 | 2012-12-26 | 株式会社吉野工業所 | Opening and shutting type ejection head |
KR101025191B1 (en) * | 2009-03-03 | 2011-04-01 | (주)톨리코리아 | Apparatus for opening and shutting nozzle of cosmetic case |
CN102673902B (en) * | 2012-05-15 | 2014-08-06 | 德晋(香港)控股有限公司 | Foam pump and liquid distributing ejector with same |
-
2015
- 2015-05-29 JP JP2015109501A patent/JP6556498B2/en active Active
-
2016
- 2016-05-20 CN CN201680030617.5A patent/CN107614389B/en active Active
- 2016-05-20 EP EP16803100.3A patent/EP3305681B1/en active Active
- 2016-05-20 US US15/576,630 patent/US10376909B2/en active Active
- 2016-05-20 WO PCT/JP2016/065092 patent/WO2016194665A1/en active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5443569A (en) * | 1993-03-05 | 1995-08-22 | Daiwa Can Company | Foam dispensing pump container |
US20050006411A1 (en) * | 2001-11-30 | 2005-01-13 | Katsuhito Kuwahara | Pump push-down head |
US8079497B2 (en) * | 2005-04-20 | 2011-12-20 | Meadwestvaco Calmar Netherlands B.V. | Dispenser with improved supply-closing means |
US7735692B2 (en) * | 2006-10-10 | 2010-06-15 | Meadwestvaco Calmar, Inc. | Rotating dispenser head with locking and venting closure connector for an air foaming pump dispenser |
US20100264169A1 (en) * | 2007-12-13 | 2010-10-21 | Colgate-Palmolive Company | Fragrance dispensing pump head |
US8616414B2 (en) * | 2009-02-09 | 2013-12-31 | Gojo Industries, Inc. | Bellows foam dispenser |
US20110297700A1 (en) * | 2009-03-02 | 2011-12-08 | Evans Santagiuliana | Unit for dispensing fluids or mixtures and relevant dispensing device |
US20110284587A1 (en) * | 2009-12-18 | 2011-11-24 | Sebastian Karol Galazka | Personal Care Composition Foaming Product |
US20130200098A1 (en) * | 2010-10-26 | 2013-08-08 | Reckitt Benckiser Llc | Foaming Liquid Dispenser |
US20140008394A1 (en) * | 2012-07-03 | 2014-01-09 | Paulus Antonius Augustinus Höfte | Foam Generating Dispenser |
Also Published As
Publication number | Publication date |
---|---|
JP6556498B2 (en) | 2019-08-07 |
EP3305681A1 (en) | 2018-04-11 |
JP2016222276A (en) | 2016-12-28 |
US10376909B2 (en) | 2019-08-13 |
CN107614389B (en) | 2020-02-28 |
CN107614389A (en) | 2018-01-19 |
EP3305681A4 (en) | 2019-02-27 |
WO2016194665A1 (en) | 2016-12-08 |
EP3305681B1 (en) | 2021-10-27 |
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